"Many agricultural pesticides – including some previously untested and commonly found in food – disrupt male hormones, according to new tests conducted by British scientists. The researchers strongly recommended that all pesticides in use today be screened to check if they block testosterone, which is critical to men’s and boys’ reproductive health. Thirty out of 37 pesticides tested by the University of London altered male hormones, including 16 that had no known hormonal activity until now. Most are fungicides applied to fruit and vegetable crops, including strawberries and lettuce."